NONLINEAR

nonlinear

(adjective) designating or involving an equation whose terms are not of the first degree

Source: WordNet® 3.1

Etymology

Adjective

nonlinear (not comparable)

(of a set of points) Not lying on a straight line.

(chemistry, of a molecule) Whose atoms do not lie in a straight line.

(mathematics, of a function) Having a product of independent variables, or a variable with an exponent not equal to one.

(of a system) Whose output is not directly proportional to its input.

Erratic and unpredictable; tending to jump back and forth.

Antonyms

• linear

Source: Wiktionary